Dumping-scow.



PATENTED AUG. 18, 1903.

B. SEAMAN.

DUMPING 800W;

fivenior:

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UNITED STATES Patented August 18, 1903.

PATENT @EETCE.

DUMPlNG-SCOW.

SPECIFICATION forming part of Letters Patent No. 736,640, dated August18, 1903.

Application filed September 12, 1902. Serial No. 123,189. (No model.)

T0 (0% whom it may concern:

Be it known that I, BILLOPP SEAMAN, a citizen of the United States, anda resident of Oakwood, in the county of Richmond and State of New York,have invented certain new and useful Improvements in Dumping- Scows, ofwhich the following is a specification.

This invention relates to the manner of utilizing the weight of a scowor boat and its deck-load in dumping the deck-load of the boat and alsoto the manner of utilizing the lifting power of air to right the boatafter its deck-load has been dumped.

I am aware that devices have been made providing for introducing waterinto compartments of a boat to capsize the boat completely, complicatedpipes and other arrangements being provided to enable the bottom of theboat to be used as a deck; but my improvements provide for the use ofthe ordinary scow without much alteration or expense, enabling the scowto be tilted sufficiently to discharge the load, after which the scowresumes its normal degree of submersion automatically, with its deckuppermost.

In -the drawings, Figure 1 shows in side elevation, partly in section, adumping-scow in the construction of which my improvements have beenembodied; and Fig. 2 is a plan view thereof with the deck removed.

In the embodiment of my invention selected for illustration anddescription as a convenient form to enable a ready and completeunderstanding of my improvements a scow or vessel of any suitable designis divided into compartments, of which a plurality, (preferably three,)as those designated by the reference-letter Ct, are water-tight. Anothercompartment, as that designatedby the reference-letter b, is providedwith a sea cock, valve, or other suitable device A with operating meansB C, by which the compartment b can be placed in communication with thewater to permit entrance of the same to the latter compartment.

The form of scow illustrated is a common one, having a load-receivin gdeck, which may be provided with a door closed to hold the deck-load inposition normally, the door be ing hinged to the deck or otherwisearranged to permit it to be lowered and having suitable means to hold itin its closed position.

The valve A being opened and the door E released by means of the weightof the boat and its deck-load, the Water is rapidly forced into thecompartment 1), Fig. 2, thus lowering that side of the boat, and as thecompartment fills with water the air therein is driven therefrom by thepressure of the water and escapes through the vent and pipe D. As thedoor E, holding the deck-load in position, has been released when thesea cock or valve was opened and allowed to hang down over the side, thedeck-load F is precipitated over the side by the sinking of that side ofthe boat as the compartment 1) fills up with water. The boat being thuslightened of the deck-load rights itself in the following manner, viz:Air is admitted into compartmentb through the air pipe and vent D as thewater in the compartment is ejected therefrom through the sea cook orvalve A by its own weight, such ejection being caused by the.

a hull having a load-receiving deck, and a plurality of compartments,means to admit water to one of said compartments to tilt said hullsufficiently to discharge said load without capsizing said hull, andmeans to permit said hull to regain its normal position and to assumeits normal degree of submersion automatically after saiddischarge,substantially as described.

Signed at New York city, in the county of New York and State of NewYork, this 8th day of September, A. D. 1902.

BILLOPP SEAMAN.

Witnesses:

M. D. AYLLY, H. S. FAIROIIILD.

